Improvement in bung-hole reamers



UNITED STATES PATENT OFFICE.

LYMAN GRAY, OF PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN BUNG-HOLE REANIERS.

Specification forming part of Letters Patent No. 51,451, (lated December 12, 1865; antedated December 5, 1865.

To all 'whom it may concern:

Be it known that I, LYMAN GRAY, of the city of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Buug-Hole Reamers; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming part of this specication, and to the letters of reference marked thereon, in which- Figure l represents a perspective view of my improved reamer. Fig. 2 is a transverse vertical section ofthe same. Fig. 3 represents a front view of the reamer, showing the position of the knife or cutter. Fig. 4t is a crossseetion of the pod.

All the parts are lettered, and similar letters indicate like parts in the different views.

The nature of myinvention consists ill making the pod or body of the reamer hollow to collect the chips or cuttings and preventthem from falling into the barrel, and open at the top or largest end, whereby the cuttings, as they accumulate, can be thrown out, that they may not interfere with the operations of the knife.

Myimprovement also consists in forming an index on the pod or body of the reanier, which, in combination with a sliding gage, enables the operator to so regulate the cut that no mistake can occur in preparing the barrels for the various-sized bun gs.

Another part of my invention consists in securing the handle to the pod by means of an arch'spanning the large open end, and sufhciently high above the mouth of the .pod to give free passage to the cuttings while being thrown out.

To enable others to understand and make myimprovement, I will proceed to describeits construction by reference to thev accompanying drawings.

I construct my improved rcamer by making a hollow metallic pod, D, with an opening on one side sufficiently large for the insertion of a steel knife, R, secured therein by asmall screw, A, at the top or large end, the shape of the pod and knife heilig shown in Figs. 3 and 4. On the opposite side of the pod are a series of figures running from the bottom or small end to the top, forming a scale or index representing the diameter. Besidel this index is a sliding gage, T, secured to the pd, and made adjustable by means of a set-screw, L, moving in a long slot, which allows the gage to be slid up or down, as the cascinay require. The large end ofthe pod D is left open for the purpose hereinbefore stated, and is spanned by a high arch,-B, supporting a longitudinal socket, C, through which. a wooden handle, S, is passed for working the reamer.

rlhe small end of the pod D may be furnished with a bit or short auger, E, rather larger than the least diameter of the reamer, for the purpose of boring into barrels th'nt are not already provided with a bung-hole.

The object and working of reamers constructed for this purpose being well understood, no description is herein deemed necessary.

Having described my imnovement, what I claim is A tapering hollow pod, D, open at the top or largest end, when said large end or open top is surmounted by an arch, B, and socket torsupporting the handle, in the manner sllown, and in combination therewith the use of the scale ot figures on the outside of the pod and sliding gage attached thereto, operating substan tially as represen ted, for the purpose herein set forth.

LYMAN GRAY.

Witnesses:

JosIAH W. ELLs, En. WILLIAMS, J r. 

